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20104143412 = 227992968483
BaseRepresentation
bin10010101110010011…
…001110001000110100
31220220002111022011011
4102232103032020310
5312133130042122
613122525322004
71311125254003
oct225623161064
956802438134
1020104143412
1185872a0561
123a90a06304
131b8513c362
14d8a074c3a
157c9e8d377
hex4ae4ce234

20104143412 has 24 divisors (see below), whose sum is σ = 35666467200. Its totient is φ = 9914002176.

The previous prime is 20104143403. The next prime is 20104143427. The reversal of 20104143412 is 21434140102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259323 + ... + 327805.

It is an arithmetic number, because the mean of its divisors is an integer number (1486102800).

Almost surely, 220104143412 is an apocalyptic number.

It is an amenable number.

20104143412 is a deficient number, since it is larger than the sum of its proper divisors (15562323788).

20104143412 is a wasteful number, since it uses less digits than its factorization.

20104143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69495 (or 69493 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20104143412 its reverse (21434140102), we get a palindrome (41538283514).

The spelling of 20104143412 in words is "twenty billion, one hundred four million, one hundred forty-three thousand, four hundred twelve".

Divisors: 1 2 4 79 158 316 929 1858 3716 68483 73391 136966 146782 273932 293564 5410157 10820314 21640628 63620707 127241414 254482828 5026035853 10052071706 20104143412